# ---
# title: 185. Department Top Three Salaries
# id: problem185
# author: Tian Jun
# date: 2020-10-31
# difficulty: Hard
# categories: 
# link: <https://leetcode.com/problems/department-top-three-salaries/description/>
# hidden: true
# ---
# 
# The `Employee` table holds all employees. Every employee has an Id, and there
# is also a column for the department Id.
# 
#     
#     
#     +----+-------+--------+--------------+
#     | Id | Name  | Salary | DepartmentId |
#     +----+-------+--------+--------------+
#     | 1  | Joe   | 85000  | 1            |
#     | 2  | Henry | 80000  | 2            |
#     | 3  | Sam   | 60000  | 2            |
#     | 4  | Max   | 90000  | 1            |
#     | 5  | Janet | 69000  | 1            |
#     | 6  | Randy | 85000  | 1            |
#     | 7  | Will  | 70000  | 1            |
#     +----+-------+--------+--------------+
#     
# 
# The `Department` table holds all departments of the company.
# 
#     
#     
#     +----+----------+
#     | Id | Name     |
#     +----+----------+
#     | 1  | IT       |
#     | 2  | Sales    |
#     +----+----------+
#     
# 
# Write a SQL query to find employees who earn the top three salaries in each of
# the department. For the above tables, your SQL query should return the
# following rows (order of rows does not matter).
# 
#     
#     
#     +------------+----------+--------+
#     | Department | Employee | Salary |
#     +------------+----------+--------+
#     | IT         | Max      | 90000  |
#     | IT         | Randy    | 85000  |
#     | IT         | Joe      | 85000  |
#     | IT         | Will     | 70000  |
#     | Sales      | Henry    | 80000  |
#     | Sales      | Sam      | 60000  |
#     +------------+----------+--------+
#     
# 
# Explanation:
# 
# In IT department, Max earns the highest salary, both Randy and Joe earn the
# second highest salary, and Will earns the third highest salary. There are only
# two employees in the Sales department, Henry earns the highest salary while
# Sam earns the second highest salary.
# 
# 
## @lc code=start
using LeetCode

## add your code here:
## @lc code=end
